scholarly journals Self-Adaptation to Mobile Resources in Service Oriented Architecture

2015 ◽  
Author(s):  
Nour Ali ◽  
Carlos Solis
Keyword(s):  
Service Oriented Architecture ◽  
Service Oriented ◽  
Self Adaptation

Model in SM of DEE Based on Service-Oriented Interactions at Dynamic Software Product Lines

2015 ◽  
pp. 231-248 ◽  
Author(s):  
Vardan Mkrttchian ◽  
Alexander Bershadsky ◽  
Alexander Bozhday ◽  
Ludmila Fionova
Keyword(s):  
Service Oriented Architecture ◽  
Structural Basis ◽  
Intelligent Software Agents ◽  
Service Oriented ◽  
E Learning ◽  
Self Adaptation ◽  
Basic Characteristics ◽  
Future Direction ◽  
Triple H ◽  
Model Variability

Creation of distance learning systems that have the properties of mobility, adaptability, and service-orientation are currently the actual scientific and practical problem and future direction of development of general e-learning. The chapter suggests a possible approach to the construction of a single pervasive intellectual environment for e-education services based on the concept of Triple H-Avatar. Structural basis of the proposed distance education system is an interconnected pair of intelligent software agents (avatars): avatar of student and avatar of teacher are implemented using a service-oriented architecture. Avatars are able to adapt to the current level of the student's knowledge, currently available software, and provide technical, telecommunications, and environmental requirements, and various educational standards. As a basis of self-adaptation of avatars, a model of variability, including the three basic characteristics of hierarchy: educational content, interface, and software and technical support. In this case, the mathematical description of the model variability is implemented using the theory of hypergraphs.

DYNAMIC REST SERVICES ORCHESTRATION USING THE KNOWLEDGE BASE

2019 ◽  
Author(s):  
Kostyantyn Kharchenko
Keyword(s):  
Knowledge Base ◽  
Service Oriented Architecture ◽  
Main Idea ◽  
The Real ◽  
Server Side ◽  
Service Oriented ◽  
Services Orchestration ◽  
Client Side ◽  
Abstract Operation ◽  
Microservice Architecture

The approach to organizing the automated calculations’ execution process using the web services (in particular, REST-services) is reviewed. The given solution will simplify the procedure of introduction of the new functionality in applied systems built according to the service-oriented architecture and microservice architecture principles. The main idea of the proposed solution is in maximum division of the server-side logic development and the client-side logic, when clients are used to set the abstract computation goals without any dependencies to existing applied services. It is proposed to rely on the centralized scheme to organize the computations (named as orchestration) and to put to the knowledge base the set of rules used to build (in multiple steps) the concrete computational scenario from the abstract goal. It is proposed to include the computing task’s execution subsystem to the software architecture of the applied system. This subsystem is composed of the service which is processing the incoming requests for execution, the service registry and the orchestration service. The clients send requests to the execution subsystem without any references to the real-world services to be called. The service registry searches the knowledge base for the corresponding input request template, then the abstract operation description search for the request template is performed. Each abstract operation may already have its implementation in the form of workflow composed of invocations of the real applied services’ operations. In case of absence of the corresponding workflow in the database, this workflow implementation could be synthesized dynamically according to the input and output data and the functionality description of the abstract operation and registered applied services. The workflows are executed by the orchestrator service. Thus, adding some new functions to the client side can be possible without any changes at the server side. And vice versa, adding new services can impact the execution of the calculations without updating the clients.

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